Need a command to find out what ports are being used.

[hronek]

I need some way of finding out what port numbers are being used. Is there some command that can do this?

 

[cfsalmeida]

If you mean the state open/close you can download "nmap" port scanner in "pkgadd" format from "

http://www.sunfreware.com"

and use something like:

# nmap -P0 -sT localhost

if you mean "what network trafic are in port x" you can use
Solaris tcp dumper "snoop", eg check network packets on interface hme0 only in port 80 (HTTP):

# snoop -d hme0 port 80

check "snoop" man page.

Hope it helps,

Carlos Almeida,

 

[StickyBit]

If you want to find out what source and destination ports are being used by the system, use the netstat -an command.

StickyBit.

 

[arathorn]

Hi,

Perhaps this package can help you.

http://www.cert.org/security-improvement/implementations/i042.05.html

At least in Hp-ux you can see the open ports and wich processes open them.

Best regards.